ci: Add Dockerfile for self-hosted GitHub runner

Building the flutter image is too much for GH CI.

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: true
       matrix:
         os:
-          - ubuntu-latest
+          - self-hosted
           # - windows-latest
           # - macos-latest
 
@@ -23,12 +23,6 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Install Qt
-        uses: jurplel/install-qt-action@v3
-        with:
-          version: 6.7.3
-          cache: true
-
       - name: Install ninja-build tool (must be after Qt due PATH changes)
         if: ${{ runner.os == 'Windows' }}
         uses: turtlesec-no/get-ninja@main
@@ -37,59 +31,15 @@ jobs:
         if: ${{ runner.os == 'Windows' }}
         uses: ilammy/msvc-dev-cmd@v1
 
-      - name: Install dependencies on Ubuntu
-        if: ${{ runner.os == 'Linux' }}
-        run: |
-          sudo apt update -qq
-          sudo apt install libgtk-3-dev libglib2.0-dev ninja-build lld xvfb -y
-
-      - uses: subosito/flutter-action@v2
-        with:
-          flutter-version: '3.24.0'
-          channel: 'stable'
-
       - name: Checkout qt-embedder
         uses: actions/checkout@v4
 
-      - name: Create folder structure
-        run: |
-          mkdir -p 3rdparty/out/host_debug_unopt/
-
-      - name: Checkout flutter engine
-        uses: actions/checkout@v4
-        with:
-          repository: iamsergio/engine.git
-          ref: wip/multiwindow
-          path: 3rdparty/flutter/
-
-      - name: debug
-        run: |
-          flutter --version
-          which flutter
-          which dart
-
-      - name: Fix embedder header
-        run: cp 3rdparty/flutter/shell/platform/embedder/embedder.h 3rdparty/flutter/shell/platform/embedder/flutter_embedder.h
-
-      - name: Download engine binary
-        run: |
-          ./download_engine.sh
-          cp libflutter_engine.so 3rdparty/out/host_debug_unopt/
-        env:
-          GH_TOKEN: ${{ github.token }}
-
       - name: Configure project
         run: cmake -S . -B ./build-dev --preset dev
-        env:
-          FLUTTER_ENGINE_FOLDER: ${{ github.workspace }}/3rdparty/flutter/
 
       - name: Build Project ${{ matrix.preset.build_preset_arg }}
         run: cmake --build ./build-dev
-        env:
-          FLUTTER_ENGINE_FOLDER: ${{ github.workspace }}/3rdparty/flutter/
 
-      # - name: Build example
-      #   run: |
-      #     ./build_example.sh
-      #   env:
-      #     FLUTTER_ENGINE_FOLDER: ${{ github.workspace }}/3rdparty/flutter/
+      - name: Build example
+        run: |
+          ./build_example.sh

docker/Dockerfile

@@ -8,9 +8,14 @@
 # Docker container for building the engine and testing qt-flutter-embedder
 # in CI
 
+# docker build --build-arg GITHUB_RUNNER_TOKEN=$GITHUB_RUNNER_TOKEN -t qt-flutter-embedder .
+# docker run -it qt-flutter-embedder /home/ubuntu/actions-runner/run.sh
+
 FROM ubuntu:24.10
 MAINTAINER Sergio Martins ([email protected])
 
+ARG GITHUB_RUNNER_TOKEN
+
 ENV TZ=Europe/Berlin
 ENV LC_CTYPE=C.UTF-8
 # ENV LD_LIBRARY_PATH=/Qt5/lib/:/Qt6/lib/
@@ -45,3 +50,28 @@ git fetch sergio && \
 git checkout sergio/main && gclient sync -D
 
 RUN cd $FLUTTER_ENGINE_FOLDER && ./build.sh && cp ./shell/platform/embedder/embedder.h ./shell/platform/embedder/flutter_embedder.h
+
+# Install GitHub Actions runner
+
+RUN mkdir actions-runner && cd actions-runner && \
+    curl -o actions-runner-linux-x64-2.320.0.tar.gz -L https://github.com/actions/runner/releases/download/v2.320.0/actions-runner-linux-x64-2.320.0.tar.gz && \
+    echo "93ac1b7ce743ee85b5d386f5c1787385ef07b3d7c728ff66ce0d3813d5f46900  actions-runner-linux-x64-2.320.0.tar.gz" | shasum -a 256 -c && \
+    tar xzf ./actions-runner-linux-x64-2.320.0.tar.gz && \
+    ./config.sh --url https://github.com/KDABLabs/qt-flutter-embedder --token $GITHUB_RUNNER_TOKEN
+
+# More dependencies, TODO: move up!
+USER root
+RUN apt install xvfb -y
+
+# Install GitHub command-line interface (gh)
+# Instructions copied from https://github.com/cli/cli/blob/trunk/docs/install_linux.md
+RUN mkdir -p -m 755 /etc/apt/keyrings \
+    && curl -s https://cli.github.com/packages/githubcli-archive-keyring.gpg | tee /etc/apt/keyrings/githubcli-archive-keyring.gpg > /dev/null \
+    && chmod go+r /etc/apt/keyrings/githubcli-archive-keyring.gpg \
+    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | tee /etc/apt/sources.list.d/github-cli.list > /dev/null \
+    && apt-get update \
+    && apt-get install gh -y \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+USER ubuntu